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1da177e4 LT |
1 | /* |
2 | * sata_nv.c - NVIDIA nForce SATA | |
3 | * | |
4 | * Copyright 2004 NVIDIA Corp. All rights reserved. | |
5 | * Copyright 2004 Andrew Chew | |
6 | * | |
aa7e16d6 JG |
7 | * |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2, or (at your option) | |
11 | * any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; see the file COPYING. If not, write to | |
20 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. | |
1da177e4 | 21 | * |
af36d7f0 JG |
22 | * |
23 | * libata documentation is available via 'make {ps|pdf}docs', | |
24 | * as Documentation/DocBook/libata.* | |
25 | * | |
26 | * No hardware documentation available outside of NVIDIA. | |
27 | * This driver programs the NVIDIA SATA controller in a similar | |
28 | * fashion as with other PCI IDE BMDMA controllers, with a few | |
29 | * NV-specific details such as register offsets, SATA phy location, | |
30 | * hotplug info, etc. | |
31 | * | |
1da177e4 LT |
32 | */ |
33 | ||
34 | #include <linux/config.h> | |
35 | #include <linux/kernel.h> | |
36 | #include <linux/module.h> | |
37 | #include <linux/pci.h> | |
38 | #include <linux/init.h> | |
39 | #include <linux/blkdev.h> | |
40 | #include <linux/delay.h> | |
41 | #include <linux/interrupt.h> | |
a9524a76 | 42 | #include <linux/device.h> |
1da177e4 LT |
43 | #include <scsi/scsi_host.h> |
44 | #include <linux/libata.h> | |
45 | ||
46 | #define DRV_NAME "sata_nv" | |
af64371a | 47 | #define DRV_VERSION "0.9" |
1da177e4 | 48 | |
10ad05df JG |
49 | enum { |
50 | NV_PORTS = 2, | |
51 | NV_PIO_MASK = 0x1f, | |
52 | NV_MWDMA_MASK = 0x07, | |
53 | NV_UDMA_MASK = 0x7f, | |
54 | NV_PORT0_SCR_REG_OFFSET = 0x00, | |
55 | NV_PORT1_SCR_REG_OFFSET = 0x40, | |
1da177e4 | 56 | |
27e4b274 | 57 | /* INT_STATUS/ENABLE */ |
10ad05df | 58 | NV_INT_STATUS = 0x10, |
10ad05df | 59 | NV_INT_ENABLE = 0x11, |
27e4b274 | 60 | NV_INT_STATUS_CK804 = 0x440, |
10ad05df | 61 | NV_INT_ENABLE_CK804 = 0x441, |
1da177e4 | 62 | |
27e4b274 TH |
63 | /* INT_STATUS/ENABLE bits */ |
64 | NV_INT_DEV = 0x01, | |
65 | NV_INT_PM = 0x02, | |
66 | NV_INT_ADDED = 0x04, | |
67 | NV_INT_REMOVED = 0x08, | |
68 | ||
69 | NV_INT_PORT_SHIFT = 4, /* each port occupies 4 bits */ | |
70 | ||
39f87582 | 71 | NV_INT_ALL = 0x0f, |
5a44efff TH |
72 | NV_INT_MASK = NV_INT_DEV | |
73 | NV_INT_ADDED | NV_INT_REMOVED, | |
39f87582 | 74 | |
27e4b274 | 75 | /* INT_CONFIG */ |
10ad05df JG |
76 | NV_INT_CONFIG = 0x12, |
77 | NV_INT_CONFIG_METHD = 0x01, // 0 = INT, 1 = SMI | |
1da177e4 | 78 | |
10ad05df JG |
79 | // For PCI config register 20 |
80 | NV_MCP_SATA_CFG_20 = 0x50, | |
81 | NV_MCP_SATA_CFG_20_SATA_SPACE_EN = 0x04, | |
82 | }; | |
1da177e4 LT |
83 | |
84 | static int nv_init_one (struct pci_dev *pdev, const struct pci_device_id *ent); | |
ada364e8 TH |
85 | static void nv_ck804_host_stop(struct ata_host_set *host_set); |
86 | static irqreturn_t nv_generic_interrupt(int irq, void *dev_instance, | |
87 | struct pt_regs *regs); | |
88 | static irqreturn_t nv_nf2_interrupt(int irq, void *dev_instance, | |
89 | struct pt_regs *regs); | |
90 | static irqreturn_t nv_ck804_interrupt(int irq, void *dev_instance, | |
91 | struct pt_regs *regs); | |
1da177e4 LT |
92 | static u32 nv_scr_read (struct ata_port *ap, unsigned int sc_reg); |
93 | static void nv_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val); | |
1da177e4 | 94 | |
39f87582 TH |
95 | static void nv_nf2_freeze(struct ata_port *ap); |
96 | static void nv_nf2_thaw(struct ata_port *ap); | |
97 | static void nv_ck804_freeze(struct ata_port *ap); | |
98 | static void nv_ck804_thaw(struct ata_port *ap); | |
99 | static void nv_error_handler(struct ata_port *ap); | |
100 | ||
1da177e4 LT |
101 | enum nv_host_type |
102 | { | |
103 | GENERIC, | |
104 | NFORCE2, | |
27e4b274 | 105 | NFORCE3 = NFORCE2, /* NF2 == NF3 as far as sata_nv is concerned */ |
e710245b | 106 | CK804 |
1da177e4 LT |
107 | }; |
108 | ||
3b7d697d | 109 | static const struct pci_device_id nv_pci_tbl[] = { |
1da177e4 LT |
110 | { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE2S_SATA, |
111 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, NFORCE2 }, | |
112 | { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE3S_SATA, | |
113 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, NFORCE3 }, | |
114 | { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE3S_SATA2, | |
115 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, NFORCE3 }, | |
116 | { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_CK804_SATA, | |
117 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, CK804 }, | |
118 | { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_CK804_SATA2, | |
119 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, CK804 }, | |
120 | { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP04_SATA, | |
121 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, CK804 }, | |
122 | { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP04_SATA2, | |
123 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, CK804 }, | |
541134cf | 124 | { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP51_SATA, |
e710245b | 125 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, GENERIC }, |
541134cf | 126 | { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP51_SATA2, |
e710245b | 127 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, GENERIC }, |
541134cf | 128 | { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP55_SATA, |
e710245b | 129 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, GENERIC }, |
e86ee668 | 130 | { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP55_SATA2, |
e710245b | 131 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, GENERIC }, |
4c5c8161 AC |
132 | { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP61_SATA, |
133 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, GENERIC }, | |
134 | { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP61_SATA2, | |
135 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, GENERIC }, | |
136 | { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP61_SATA3, | |
137 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, GENERIC }, | |
1da177e4 LT |
138 | { PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, |
139 | PCI_ANY_ID, PCI_ANY_ID, | |
140 | PCI_CLASS_STORAGE_IDE<<8, 0xffff00, GENERIC }, | |
541134cf DD |
141 | { PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, |
142 | PCI_ANY_ID, PCI_ANY_ID, | |
143 | PCI_CLASS_STORAGE_RAID<<8, 0xffff00, GENERIC }, | |
1da177e4 LT |
144 | { 0, } /* terminate list */ |
145 | }; | |
146 | ||
1da177e4 LT |
147 | static struct pci_driver nv_pci_driver = { |
148 | .name = DRV_NAME, | |
149 | .id_table = nv_pci_tbl, | |
150 | .probe = nv_init_one, | |
151 | .remove = ata_pci_remove_one, | |
152 | }; | |
153 | ||
193515d5 | 154 | static struct scsi_host_template nv_sht = { |
1da177e4 LT |
155 | .module = THIS_MODULE, |
156 | .name = DRV_NAME, | |
157 | .ioctl = ata_scsi_ioctl, | |
158 | .queuecommand = ata_scsi_queuecmd, | |
1da177e4 LT |
159 | .can_queue = ATA_DEF_QUEUE, |
160 | .this_id = ATA_SHT_THIS_ID, | |
161 | .sg_tablesize = LIBATA_MAX_PRD, | |
1da177e4 LT |
162 | .cmd_per_lun = ATA_SHT_CMD_PER_LUN, |
163 | .emulated = ATA_SHT_EMULATED, | |
164 | .use_clustering = ATA_SHT_USE_CLUSTERING, | |
165 | .proc_name = DRV_NAME, | |
166 | .dma_boundary = ATA_DMA_BOUNDARY, | |
167 | .slave_configure = ata_scsi_slave_config, | |
ccf68c34 | 168 | .slave_destroy = ata_scsi_slave_destroy, |
1da177e4 | 169 | .bios_param = ata_std_bios_param, |
1da177e4 LT |
170 | }; |
171 | ||
ada364e8 | 172 | static const struct ata_port_operations nv_generic_ops = { |
1da177e4 LT |
173 | .port_disable = ata_port_disable, |
174 | .tf_load = ata_tf_load, | |
175 | .tf_read = ata_tf_read, | |
176 | .exec_command = ata_exec_command, | |
177 | .check_status = ata_check_status, | |
178 | .dev_select = ata_std_dev_select, | |
1da177e4 LT |
179 | .bmdma_setup = ata_bmdma_setup, |
180 | .bmdma_start = ata_bmdma_start, | |
181 | .bmdma_stop = ata_bmdma_stop, | |
182 | .bmdma_status = ata_bmdma_status, | |
183 | .qc_prep = ata_qc_prep, | |
184 | .qc_issue = ata_qc_issue_prot, | |
39f87582 TH |
185 | .freeze = ata_bmdma_freeze, |
186 | .thaw = ata_bmdma_thaw, | |
187 | .error_handler = nv_error_handler, | |
188 | .post_internal_cmd = ata_bmdma_post_internal_cmd, | |
a6b2c5d4 | 189 | .data_xfer = ata_pio_data_xfer, |
ada364e8 | 190 | .irq_handler = nv_generic_interrupt, |
1da177e4 LT |
191 | .irq_clear = ata_bmdma_irq_clear, |
192 | .scr_read = nv_scr_read, | |
193 | .scr_write = nv_scr_write, | |
194 | .port_start = ata_port_start, | |
195 | .port_stop = ata_port_stop, | |
e6faf082 | 196 | .host_stop = ata_pci_host_stop, |
1da177e4 LT |
197 | }; |
198 | ||
ada364e8 TH |
199 | static const struct ata_port_operations nv_nf2_ops = { |
200 | .port_disable = ata_port_disable, | |
201 | .tf_load = ata_tf_load, | |
202 | .tf_read = ata_tf_read, | |
203 | .exec_command = ata_exec_command, | |
204 | .check_status = ata_check_status, | |
205 | .dev_select = ata_std_dev_select, | |
ada364e8 TH |
206 | .bmdma_setup = ata_bmdma_setup, |
207 | .bmdma_start = ata_bmdma_start, | |
208 | .bmdma_stop = ata_bmdma_stop, | |
209 | .bmdma_status = ata_bmdma_status, | |
210 | .qc_prep = ata_qc_prep, | |
211 | .qc_issue = ata_qc_issue_prot, | |
39f87582 TH |
212 | .freeze = nv_nf2_freeze, |
213 | .thaw = nv_nf2_thaw, | |
214 | .error_handler = nv_error_handler, | |
215 | .post_internal_cmd = ata_bmdma_post_internal_cmd, | |
ada364e8 TH |
216 | .data_xfer = ata_pio_data_xfer, |
217 | .irq_handler = nv_nf2_interrupt, | |
218 | .irq_clear = ata_bmdma_irq_clear, | |
219 | .scr_read = nv_scr_read, | |
220 | .scr_write = nv_scr_write, | |
221 | .port_start = ata_port_start, | |
222 | .port_stop = ata_port_stop, | |
223 | .host_stop = ata_pci_host_stop, | |
224 | }; | |
225 | ||
226 | static const struct ata_port_operations nv_ck804_ops = { | |
227 | .port_disable = ata_port_disable, | |
228 | .tf_load = ata_tf_load, | |
229 | .tf_read = ata_tf_read, | |
230 | .exec_command = ata_exec_command, | |
231 | .check_status = ata_check_status, | |
232 | .dev_select = ata_std_dev_select, | |
ada364e8 TH |
233 | .bmdma_setup = ata_bmdma_setup, |
234 | .bmdma_start = ata_bmdma_start, | |
235 | .bmdma_stop = ata_bmdma_stop, | |
236 | .bmdma_status = ata_bmdma_status, | |
237 | .qc_prep = ata_qc_prep, | |
238 | .qc_issue = ata_qc_issue_prot, | |
39f87582 TH |
239 | .freeze = nv_ck804_freeze, |
240 | .thaw = nv_ck804_thaw, | |
241 | .error_handler = nv_error_handler, | |
242 | .post_internal_cmd = ata_bmdma_post_internal_cmd, | |
ada364e8 TH |
243 | .data_xfer = ata_pio_data_xfer, |
244 | .irq_handler = nv_ck804_interrupt, | |
245 | .irq_clear = ata_bmdma_irq_clear, | |
246 | .scr_read = nv_scr_read, | |
247 | .scr_write = nv_scr_write, | |
248 | .port_start = ata_port_start, | |
249 | .port_stop = ata_port_stop, | |
250 | .host_stop = nv_ck804_host_stop, | |
251 | }; | |
252 | ||
ada364e8 TH |
253 | static struct ata_port_info nv_port_info[] = { |
254 | /* generic */ | |
255 | { | |
256 | .sht = &nv_sht, | |
39f87582 | 257 | .host_flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY, |
ada364e8 TH |
258 | .pio_mask = NV_PIO_MASK, |
259 | .mwdma_mask = NV_MWDMA_MASK, | |
260 | .udma_mask = NV_UDMA_MASK, | |
261 | .port_ops = &nv_generic_ops, | |
262 | }, | |
263 | /* nforce2/3 */ | |
264 | { | |
265 | .sht = &nv_sht, | |
39f87582 | 266 | .host_flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY, |
ada364e8 TH |
267 | .pio_mask = NV_PIO_MASK, |
268 | .mwdma_mask = NV_MWDMA_MASK, | |
269 | .udma_mask = NV_UDMA_MASK, | |
270 | .port_ops = &nv_nf2_ops, | |
271 | }, | |
272 | /* ck804 */ | |
273 | { | |
274 | .sht = &nv_sht, | |
39f87582 | 275 | .host_flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY, |
ada364e8 TH |
276 | .pio_mask = NV_PIO_MASK, |
277 | .mwdma_mask = NV_MWDMA_MASK, | |
278 | .udma_mask = NV_UDMA_MASK, | |
279 | .port_ops = &nv_ck804_ops, | |
280 | }, | |
1da177e4 LT |
281 | }; |
282 | ||
283 | MODULE_AUTHOR("NVIDIA"); | |
284 | MODULE_DESCRIPTION("low-level driver for NVIDIA nForce SATA controller"); | |
285 | MODULE_LICENSE("GPL"); | |
286 | MODULE_DEVICE_TABLE(pci, nv_pci_tbl); | |
287 | MODULE_VERSION(DRV_VERSION); | |
288 | ||
ada364e8 TH |
289 | static irqreturn_t nv_generic_interrupt(int irq, void *dev_instance, |
290 | struct pt_regs *regs) | |
1da177e4 LT |
291 | { |
292 | struct ata_host_set *host_set = dev_instance; | |
1da177e4 LT |
293 | unsigned int i; |
294 | unsigned int handled = 0; | |
295 | unsigned long flags; | |
296 | ||
297 | spin_lock_irqsave(&host_set->lock, flags); | |
298 | ||
299 | for (i = 0; i < host_set->n_ports; i++) { | |
300 | struct ata_port *ap; | |
301 | ||
302 | ap = host_set->ports[i]; | |
c1389503 | 303 | if (ap && |
029f5468 | 304 | !(ap->flags & ATA_FLAG_DISABLED)) { |
1da177e4 LT |
305 | struct ata_queued_cmd *qc; |
306 | ||
307 | qc = ata_qc_from_tag(ap, ap->active_tag); | |
e50362ec | 308 | if (qc && (!(qc->tf.flags & ATA_TFLAG_POLLING))) |
1da177e4 | 309 | handled += ata_host_intr(ap, qc); |
b887030a AC |
310 | else |
311 | // No request pending? Clear interrupt status | |
312 | // anyway, in case there's one pending. | |
313 | ap->ops->check_status(ap); | |
1da177e4 LT |
314 | } |
315 | ||
316 | } | |
317 | ||
1da177e4 LT |
318 | spin_unlock_irqrestore(&host_set->lock, flags); |
319 | ||
320 | return IRQ_RETVAL(handled); | |
321 | } | |
322 | ||
ada364e8 TH |
323 | static int nv_host_intr(struct ata_port *ap, u8 irq_stat) |
324 | { | |
325 | struct ata_queued_cmd *qc = ata_qc_from_tag(ap, ap->active_tag); | |
326 | int handled; | |
327 | ||
5a44efff TH |
328 | /* freeze if hotplugged */ |
329 | if (unlikely(irq_stat & (NV_INT_ADDED | NV_INT_REMOVED))) { | |
330 | ata_port_freeze(ap); | |
331 | return 1; | |
332 | } | |
333 | ||
ada364e8 TH |
334 | /* bail out if not our interrupt */ |
335 | if (!(irq_stat & NV_INT_DEV)) | |
336 | return 0; | |
337 | ||
338 | /* DEV interrupt w/ no active qc? */ | |
339 | if (unlikely(!qc || (qc->tf.flags & ATA_TFLAG_POLLING))) { | |
340 | ata_check_status(ap); | |
341 | return 1; | |
342 | } | |
343 | ||
344 | /* handle interrupt */ | |
345 | handled = ata_host_intr(ap, qc); | |
346 | if (unlikely(!handled)) { | |
347 | /* spurious, clear it */ | |
348 | ata_check_status(ap); | |
349 | } | |
350 | ||
351 | return 1; | |
352 | } | |
353 | ||
354 | static irqreturn_t nv_do_interrupt(struct ata_host_set *host_set, u8 irq_stat) | |
355 | { | |
356 | int i, handled = 0; | |
357 | ||
358 | for (i = 0; i < host_set->n_ports; i++) { | |
359 | struct ata_port *ap = host_set->ports[i]; | |
360 | ||
361 | if (ap && !(ap->flags & ATA_FLAG_DISABLED)) | |
362 | handled += nv_host_intr(ap, irq_stat); | |
363 | ||
364 | irq_stat >>= NV_INT_PORT_SHIFT; | |
365 | } | |
366 | ||
367 | return IRQ_RETVAL(handled); | |
368 | } | |
369 | ||
370 | static irqreturn_t nv_nf2_interrupt(int irq, void *dev_instance, | |
371 | struct pt_regs *regs) | |
372 | { | |
373 | struct ata_host_set *host_set = dev_instance; | |
ada364e8 TH |
374 | u8 irq_stat; |
375 | irqreturn_t ret; | |
376 | ||
c5fa46e1 | 377 | spin_lock(&host_set->lock); |
ada364e8 TH |
378 | irq_stat = inb(host_set->ports[0]->ioaddr.scr_addr + NV_INT_STATUS); |
379 | ret = nv_do_interrupt(host_set, irq_stat); | |
c5fa46e1 | 380 | spin_unlock(&host_set->lock); |
ada364e8 TH |
381 | |
382 | return ret; | |
383 | } | |
384 | ||
385 | static irqreturn_t nv_ck804_interrupt(int irq, void *dev_instance, | |
386 | struct pt_regs *regs) | |
387 | { | |
388 | struct ata_host_set *host_set = dev_instance; | |
ada364e8 TH |
389 | u8 irq_stat; |
390 | irqreturn_t ret; | |
391 | ||
c5fa46e1 | 392 | spin_lock(&host_set->lock); |
ada364e8 TH |
393 | irq_stat = readb(host_set->mmio_base + NV_INT_STATUS_CK804); |
394 | ret = nv_do_interrupt(host_set, irq_stat); | |
c5fa46e1 | 395 | spin_unlock(&host_set->lock); |
ada364e8 TH |
396 | |
397 | return ret; | |
398 | } | |
399 | ||
1da177e4 LT |
400 | static u32 nv_scr_read (struct ata_port *ap, unsigned int sc_reg) |
401 | { | |
1da177e4 LT |
402 | if (sc_reg > SCR_CONTROL) |
403 | return 0xffffffffU; | |
404 | ||
02cbd926 | 405 | return ioread32((void __iomem *)ap->ioaddr.scr_addr + (sc_reg * 4)); |
1da177e4 LT |
406 | } |
407 | ||
408 | static void nv_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val) | |
409 | { | |
1da177e4 LT |
410 | if (sc_reg > SCR_CONTROL) |
411 | return; | |
412 | ||
02cbd926 | 413 | iowrite32(val, (void __iomem *)ap->ioaddr.scr_addr + (sc_reg * 4)); |
1da177e4 LT |
414 | } |
415 | ||
39f87582 TH |
416 | static void nv_nf2_freeze(struct ata_port *ap) |
417 | { | |
418 | unsigned long scr_addr = ap->host_set->ports[0]->ioaddr.scr_addr; | |
419 | int shift = ap->port_no * NV_INT_PORT_SHIFT; | |
420 | u8 mask; | |
421 | ||
422 | mask = inb(scr_addr + NV_INT_ENABLE); | |
423 | mask &= ~(NV_INT_ALL << shift); | |
424 | outb(mask, scr_addr + NV_INT_ENABLE); | |
425 | } | |
426 | ||
427 | static void nv_nf2_thaw(struct ata_port *ap) | |
428 | { | |
429 | unsigned long scr_addr = ap->host_set->ports[0]->ioaddr.scr_addr; | |
430 | int shift = ap->port_no * NV_INT_PORT_SHIFT; | |
431 | u8 mask; | |
432 | ||
433 | outb(NV_INT_ALL << shift, scr_addr + NV_INT_STATUS); | |
434 | ||
435 | mask = inb(scr_addr + NV_INT_ENABLE); | |
436 | mask |= (NV_INT_MASK << shift); | |
437 | outb(mask, scr_addr + NV_INT_ENABLE); | |
438 | } | |
439 | ||
440 | static void nv_ck804_freeze(struct ata_port *ap) | |
441 | { | |
442 | void __iomem *mmio_base = ap->host_set->mmio_base; | |
443 | int shift = ap->port_no * NV_INT_PORT_SHIFT; | |
444 | u8 mask; | |
445 | ||
446 | mask = readb(mmio_base + NV_INT_ENABLE_CK804); | |
447 | mask &= ~(NV_INT_ALL << shift); | |
448 | writeb(mask, mmio_base + NV_INT_ENABLE_CK804); | |
449 | } | |
450 | ||
451 | static void nv_ck804_thaw(struct ata_port *ap) | |
452 | { | |
453 | void __iomem *mmio_base = ap->host_set->mmio_base; | |
454 | int shift = ap->port_no * NV_INT_PORT_SHIFT; | |
455 | u8 mask; | |
456 | ||
457 | writeb(NV_INT_ALL << shift, mmio_base + NV_INT_STATUS_CK804); | |
458 | ||
459 | mask = readb(mmio_base + NV_INT_ENABLE_CK804); | |
460 | mask |= (NV_INT_MASK << shift); | |
461 | writeb(mask, mmio_base + NV_INT_ENABLE_CK804); | |
462 | } | |
463 | ||
464 | static int nv_hardreset(struct ata_port *ap, unsigned int *class) | |
465 | { | |
466 | unsigned int dummy; | |
467 | ||
468 | /* SATA hardreset fails to retrieve proper device signature on | |
469 | * some controllers. Don't classify on hardreset. For more | |
470 | * info, see http://bugme.osdl.org/show_bug.cgi?id=3352 | |
471 | */ | |
472 | return sata_std_hardreset(ap, &dummy); | |
473 | } | |
474 | ||
475 | static void nv_error_handler(struct ata_port *ap) | |
476 | { | |
477 | ata_bmdma_drive_eh(ap, ata_std_prereset, ata_std_softreset, | |
478 | nv_hardreset, ata_std_postreset); | |
479 | } | |
480 | ||
1da177e4 LT |
481 | static int nv_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) |
482 | { | |
483 | static int printed_version = 0; | |
1da177e4 LT |
484 | struct ata_port_info *ppi; |
485 | struct ata_probe_ent *probe_ent; | |
486 | int pci_dev_busy = 0; | |
487 | int rc; | |
488 | u32 bar; | |
02cbd926 | 489 | unsigned long base; |
1da177e4 LT |
490 | |
491 | // Make sure this is a SATA controller by counting the number of bars | |
492 | // (NVIDIA SATA controllers will always have six bars). Otherwise, | |
493 | // it's an IDE controller and we ignore it. | |
494 | for (bar=0; bar<6; bar++) | |
495 | if (pci_resource_start(pdev, bar) == 0) | |
496 | return -ENODEV; | |
497 | ||
498 | if (!printed_version++) | |
a9524a76 | 499 | dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n"); |
1da177e4 LT |
500 | |
501 | rc = pci_enable_device(pdev); | |
502 | if (rc) | |
503 | goto err_out; | |
504 | ||
505 | rc = pci_request_regions(pdev, DRV_NAME); | |
506 | if (rc) { | |
507 | pci_dev_busy = 1; | |
508 | goto err_out_disable; | |
509 | } | |
510 | ||
511 | rc = pci_set_dma_mask(pdev, ATA_DMA_MASK); | |
512 | if (rc) | |
513 | goto err_out_regions; | |
514 | rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK); | |
515 | if (rc) | |
516 | goto err_out_regions; | |
517 | ||
518 | rc = -ENOMEM; | |
519 | ||
ada364e8 | 520 | ppi = &nv_port_info[ent->driver_data]; |
47a86593 | 521 | probe_ent = ata_pci_init_native_mode(pdev, &ppi, ATA_PORT_PRIMARY | ATA_PORT_SECONDARY); |
1da177e4 LT |
522 | if (!probe_ent) |
523 | goto err_out_regions; | |
524 | ||
02cbd926 JG |
525 | probe_ent->mmio_base = pci_iomap(pdev, 5, 0); |
526 | if (!probe_ent->mmio_base) { | |
527 | rc = -EIO; | |
e6faf082 | 528 | goto err_out_free_ent; |
02cbd926 | 529 | } |
1da177e4 | 530 | |
02cbd926 | 531 | base = (unsigned long)probe_ent->mmio_base; |
1da177e4 | 532 | |
02cbd926 JG |
533 | probe_ent->port[0].scr_addr = base + NV_PORT0_SCR_REG_OFFSET; |
534 | probe_ent->port[1].scr_addr = base + NV_PORT1_SCR_REG_OFFSET; | |
1da177e4 | 535 | |
ada364e8 TH |
536 | /* enable SATA space for CK804 */ |
537 | if (ent->driver_data == CK804) { | |
538 | u8 regval; | |
539 | ||
540 | pci_read_config_byte(pdev, NV_MCP_SATA_CFG_20, ®val); | |
541 | regval |= NV_MCP_SATA_CFG_20_SATA_SPACE_EN; | |
542 | pci_write_config_byte(pdev, NV_MCP_SATA_CFG_20, regval); | |
543 | } | |
544 | ||
1da177e4 LT |
545 | pci_set_master(pdev); |
546 | ||
547 | rc = ata_device_add(probe_ent); | |
548 | if (rc != NV_PORTS) | |
549 | goto err_out_iounmap; | |
550 | ||
1da177e4 LT |
551 | kfree(probe_ent); |
552 | ||
553 | return 0; | |
554 | ||
555 | err_out_iounmap: | |
02cbd926 | 556 | pci_iounmap(pdev, probe_ent->mmio_base); |
1da177e4 LT |
557 | err_out_free_ent: |
558 | kfree(probe_ent); | |
559 | err_out_regions: | |
560 | pci_release_regions(pdev); | |
561 | err_out_disable: | |
562 | if (!pci_dev_busy) | |
563 | pci_disable_device(pdev); | |
564 | err_out: | |
565 | return rc; | |
566 | } | |
567 | ||
ada364e8 TH |
568 | static void nv_ck804_host_stop(struct ata_host_set *host_set) |
569 | { | |
570 | struct pci_dev *pdev = to_pci_dev(host_set->dev); | |
571 | u8 regval; | |
572 | ||
573 | /* disable SATA space for CK804 */ | |
574 | pci_read_config_byte(pdev, NV_MCP_SATA_CFG_20, ®val); | |
575 | regval &= ~NV_MCP_SATA_CFG_20_SATA_SPACE_EN; | |
576 | pci_write_config_byte(pdev, NV_MCP_SATA_CFG_20, regval); | |
577 | ||
578 | ata_pci_host_stop(host_set); | |
579 | } | |
580 | ||
1da177e4 LT |
581 | static int __init nv_init(void) |
582 | { | |
583 | return pci_module_init(&nv_pci_driver); | |
584 | } | |
585 | ||
586 | static void __exit nv_exit(void) | |
587 | { | |
588 | pci_unregister_driver(&nv_pci_driver); | |
589 | } | |
590 | ||
591 | module_init(nv_init); | |
592 | module_exit(nv_exit); |